Nut-lock



v No Model.)

G. E. CLARKE 8v 1?. HARBBJIDGE.

I NUT LOOK. No. 359,132. Patented Mar. 8, 1887.

N. FEYFJS, HwIo-ljkmgraphcr, Wnhinglon. D C- UNITED STATES PATENTOFFICE.

GREVILLE E. CLARKE AND FREDERICK HARBRIDGE, OF RACINE, XVISCONSIN.

NUT-LOCK.

SPECIFICATION forming part of Letters Patent No. 359,132, dated IVZaz-oh8,1887.

(No model.)

To all whom it may concern:

Be it known that we, GREVILLE E. CLARKE and FREDERICK HARBRIDGE, bothresidents of Racine, in the county of Racine and State of Wisconsin,have invented certain new and useful Improvements in N ut-Locks; and wedo hereby declare that the following is a full, clear, and exactdescription of the invention, which will enable others skilled in theart to which it appertains to make and use the same, reference being hadto the accompanying drawings, which form a part of this specification,and in which Figure l is a perspective view of our improved nut-lock.Fig. 2 represents said look as applied to an angle fish-plate, the notbeing shown in dotted lines. Fig. 3 is a similar representation of thelook when used with a plain fish-plate, and Fig. 4 is a plan viewrepresenting the spring-lock and washer separated.

Like letters ofreferenee indicate corresponding parts throughout all thefigures.

Our invention has relation to nut-locks; and it consists in the improvedconstruction and combination of parts constituting such look, as will behereinafter fully set forth.

Referring to the accompanying drawings by letters, A represents aportion of a railroadrail, B an angle fish-plate, C a plain fislrplata,D a connecting-bolt, and E its nut, all of which parts are of theordinary construction.

The nut-lock is, more properly speaking, a combined washer and nut-lock,the washer F consisting of a piece of malleable metal provided with theusual central hole for the bolt, about which is formed a channel, G,which has at one side thereof a straight continuation. This channel isformed to receive the springlock H, the curved portion of which is allin one plane, while the tangential portion I is bent upwardly from saidplane.

The curved portion of the lock rests in the curved part of the channelin the washer, and is retained there simply by the nut or by the lugs J,which project from the outer walls of said channel and are turned oversaid look after it is put in place in the washer. The straight portionof the lock, which rests in an inclined manner above the continuation ofthe channel G, is readily depressed into said continuation as the nut isturned off or on the bolt, and yet it bears with sufiicient forceagainst the corners of the nut to keep it from turning off of itself.

The washer has two parallel sides, the edge of one of which is at agreater distance from the central hole of the washer than is the edge ofthe other, which construction renders the washer applicable to thedifferent fish-plates, as represented in Figs. 2 and 3, said edgesbearing against the lower portion of the angle fish-plate and the rail,or simply against the rail. The nuts used with this lock, as may be seenin Figs. 2 and 3, may be of different sizes; but the smallest ones, inconsequence of the location of the lock, rest partially upon thetangential portion of the look, so that said portion of the lock can atno time bear flatly against a side of the nut, but must, when the nut islocked, hear at a slight upward inclination across the lower edge of oneface of the nut, thereby rendering it possible to force the not backover said lock with a wrench, and without using an extra tool fordepressing the lock. The walls of the continuation of the channelprevent the tangential portion of the look from being forced out ofplace when the nut is turned off.

Having thus fully described our invention, we claim-- In a nut-lock, thecombination of a washer having a channel around the central aperture,one end of said channel being continued or an tended at a tangent, and alock consisting of a piece of metal bent into a single coil, one end ofwhich is extended at a tangentand bent out of the plane of the coil,said end projecting beyond and being adapted to engage with the underedges of the nut and to be forced into the extension of said channel.

In testimony that we claim the foregoing as our own we have hereuntoaffixed our signatures in presence of two witnesses.

CREVILLE E. CLARKE. FREDERICK HARBRIDGE.

\Vi tnesscs:

JOHN T. RICE, F. XV. BEUoE.

